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How to Connect Monet to Claude via MCP

Connect MONET, the Lithuanian cloud accounting system, to Claude or ChatGPT: customers and vendors with balances and open items, sales and purchase invoices, items and stock, contracts, and every Monet report (ledger, trial balance, profit and loss, VAT, debts) as CSV. Multi-company logins for accountants.

HCBy HelpCode teamUpdated 9 min read Open-source on GitHub

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Monet

Monet

Connect MONET, the Lithuanian cloud accounting system, to Claude or ChatGPT: customers and vendors with balances and open items, sales and purchase invoices, items and stock, contracts, and every Monet report (ledger, trial balance, profit and loss, VAT, debts) as CSV. Multi-company logins for accountants.

tools

42

Region

INTL

Category

Accounting

Authentication

Basic Auth

Required env vars

MONET_USERNAMEMONET_PASSWORD
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  • Open-source on GitHub
    Open source · AGPL-3.0
  • Works with ChatGPT, Claude, Gemini
    Any MCP-compatible client

Skip the install. Get this working in under 2 minutes.

Start a free trial on cloud.anythingmcp.com, add the Monet in one click, then point your AI client (Claude, ChatGPT, Copilot or Cursor) at the generated MCP endpoint. No Docker, no git clone, zero engineering experience required.

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AnythingMCP is listed in Claude's connector directory: add it to Claude in one click (opens in a new tab), then sign in and choose which MCP servers Claude may use.

Summary

Connect MONET, the Lithuanian cloud accounting system, to Claude or ChatGPT: customers and vendors with balances and open items, sales and purchase invoices, items and stock, contracts, and every Monet report (ledger, trial balance, profit and loss, VAT, debts) as CSV. Multi-company logins for accountants.

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Example prompts for Monet

Click any prompt to copy it. Paste into Claude, ChatGPT, Cursor, Gemini, Copilot or OpenClaw to run it against this connector.

Monet · live via MCP
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Opus 4.7

Claude is AI and can make mistakes. Please double-check responses.

💡 No install? Use cloud.anythingmcp.com directly. Sign in, click Connectors → Monet, paste your credentials, mint an MCP API key and you're done. No Docker, no git clone, no local server.

Monet + Claude

Connect MONET, the Lithuanian cloud accounting system, to Claude or ChatGPT: customers and vendors with balances and open items, sales and purchase invoices, items and stock, contracts, and every Monet report (ledger, trial balance, profit and loss, VAT, debts) as CSV. Multi-company logins for accountants.

Prerequisites

See the full setup instructions baked into the connector (visible in the in-app store when you select the connector). The required environment variables for this connector are:

MONET_USERNAME, MONET_PASSWORD

Step 1 — Get credentials

Setting up takes about 5 minutes. You need a MONET user (e.monet.lt) that can see the companies the AI should work with, with API access for that user.

  1. Pick the Monet user the connector signs in as. A separate user for the integration is best: you can limit its rights and change its password without locking anyone out.
  2. Put the user name you sign in to e.monet.lt with into MONET_USERNAME and its password into MONET_PASSWORD. The password is stored encrypted.
  3. Install the connector and run monet_get_company: it shows the name and code of the company the login currently works in.
  4. If the same login works in the browser but the connector gets a 401, ask Monet support ([email protected]) to enable API access for that user.

One login, several companies: accountants often reach many companies with one Monet login, and every call works in the login's current company. The AI checks it with monet_get_company, finds another one with monet_list_companies and switches with monet_set_company. Switching changes no accounting data, but it holds for that login everywhere until it is switched again. So the AI tells you which company the figures come from, and a separate integration user keeps colleagues who share a login from landing in the wrong company.

What it reads: customers (klientai) and vendors (tiekėjai) with their short code (trumpinys), company and VAT codes, contacts and terms; the balance and open items of a customer or vendor; sales and purchase invoices in a period, and what is still open on a single invoice; items and services (prekės) with prices, stock per warehouse (sandėlis) and the stock that changed today; sales contracts (sutartys) with their billing schedule; employee work timetables; and the lists behind them: chart of accounts, VAT codes (PVM kodai), dimensions (požymiai), item groups and types, warehouses and currencies.

Every report as CSV: general ledger, trial balance, profit and loss, VAT, customer and vendor debts, stock and fixed assets. The AI first asks monet_get_report_parameters which keys a report takes (for example from, to, periodCode), then runs monet_get_report in CSV. LedgerTransReport, LedgerTrialBalanceReport, ProfitLossReport, CustVendDebtsOnDateReport and InventOnhandByDateReport answer most questions. Report headings follow the interface language of the login.

Switched off at install: every write. That is monet_create_customer, monet_update_customer, monet_create_vendor, monet_update_vendor, monet_create_item, monet_update_item and monet_create_dimension, the delete tools monet_delete_customer, monet_delete_vendor and monet_delete_item, and the invoice tools monet_create_sales_invoice, monet_create_sales_service_invoice, monet_create_purchase_invoice and monet_create_purchase_service_invoice. They change the books: invoices are posted to the ledger unless SkipPost is set, item invoices move stock, and Monet numbers the document itself unless you give an InvoiceId. An administrator turns on only the tools needed, one by one, and even then the AI shows you the record or the invoice lines and totals and waits for your yes. Monet refuses to delete a customer, vendor or item that documents still use.

Limits: lists return up to 300 rows per page, and invoice lists always need a period with a from and a to date. Reports over long periods get very long, so the AI asks for one month at a time.

Common errors: 401 means the user name or password is wrong, or the user has no API access yet. 403 means the user may not read that data: give it rights to the company in Monet, or switch company. An empty list usually means the login is in a different company than you expected.

The connector does not register payments or bank entries, and no tool moves money.

Step 2 — Install the adapter

curl -fsSL https://raw.githubusercontent.com/HelpCode-ai/anythingmcp/main/docker-compose.quickstart.yml -o docker-compose.yml
printf 'JWT_SECRET=%s\nENCRYPTION_KEY=%s\n' "$(openssl rand -hex 32)" "$(openssl rand -hex 32)" > .env
docker compose up -d

Step 3 — Add the connector in Claude

Your server URL: in AnythingMCP, open MCP Servers → the server this connector is on, and copy its URL (https://cloud.anythingmcp.com/mcp/…). Use it wherever this guide shows YOUR_SERVER_ID.

Recommended path: works on claude.ai web without editing any config file.

  1. In Claude, open Customize → Connectors.
  2. Click +, then Add custom connector.
  3. Enter a name, e.g. Monet, and the remote MCP server URL https://cloud.anythingmcp.com/mcp/YOUR_SERVER_ID, then click Add.
  4. Click Connect and sign in to AnythingMCP (OAuth) to allow access.

All tools below appear in your chat: start typing prompts.

Available tools

ToolWhat it does
monet_get_companyRead the company the Monet login currently works in (GetCompany): its name and code
monet_list_companiesList the companies this Monet login can switch to (GetCompanyList), for accountants and groups with several companies under one login
monet_set_companySwitch the current company of this Monet login to another one from monet_list_companies (SetCompany)
monet_get_languageRead the interface language set for this Monet login (GetLanguage), which also decides the language of report headings and some messages
monet_list_currenciesList the currency codes defined in the current company (GetCurrencyCodeList), e.g
monet_list_dimensionsList dimensions (požymiai) of the current company (GetDimList): departments, projects or products used to split postings
monet_list_ledger_accountsList the chart of accounts of the current company (GetLedgerList): account numbers and names, to read reports and post service lines to the…
monet_list_vat_groupsList the VAT codes (PVM kodai, item tax groups) of the current company (GetTaxItemGroupList), used on invoice lines and items
monet_list_warehousesList the warehouses (sandėliai) of the current company (GetLocationList), for stock quantities and item and invoice lines
monet_list_item_groupsList the item groups (prekių grupės) of the current company (GetItemGroupList), to filter items and stock reports by group
monet_list_item_typesList the item types (prekių tipai) defined in the current company (GetItemTypeList), such as stocked goods or services
monet_list_customersList customers (klientai) of the current company (GetCustList) with their short code (account number), name, company and VAT codes…
monet_list_vendorsList vendors (tiekėjai) of the current company (GetVendList) with their short code, name, company and VAT codes, contacts and terms
monet_get_customer_balanceRead the balance a customer owes or has in credit (GetCustBalance), by customer short code
monet_list_customer_open_itemsList a customer's open (not fully settled) invoices and payments (GetCustOpenPayments) with amounts, due dates and what is left to settle
monet_get_vendor_balanceRead the balance owed to a vendor (GetVendBalance), by vendor short code
monet_list_vendor_open_itemsList a vendor's open (not fully settled) invoices and payments (GetVendOpenPayments) with amounts, due dates and what is left to pay
monet_list_sales_invoicesList sales invoices (pardavimo sąskaitos faktūros) in a date range (GetCustInvoiceList), with number, customer, dates, amounts and VAT
monet_list_purchase_invoicesList purchase invoices (pirkimo sąskaitos faktūros) in a date range (GetVendInvoiceList), with number, vendor, dates, amounts and VAT
monet_get_sales_invoice_balanceRead what is still open on one sales invoice of a customer (GetCustInvoiceBalanceCur), in the invoice currency
monet_get_purchase_invoice_balanceRead what is still open on one purchase invoice of a vendor (GetVendInvoiceBalanceCur), in the invoice currency
monet_list_itemsList items and services (prekės) of the current company (GetItemList) with number, name, group, type, unit and prices
monet_get_itemRead one item with its stock on hand per warehouse (GetItem), by item number
monet_list_stock_quantitiesList stock quantities on hand (ItemsQuantity): all items, or with _all false only the items whose stock changed today, which suits a daily…
monet_list_sales_contractsList sales contracts (sutartys) with their billing schedule (GetSalesSchedList), filtered by contract number and/or customer
monet_get_employee_timetableRead the work timetable of employees of a company for a period (GetCompanyWorkerTimeTable): hours per day per employment agreement
monet_get_report_parametersList the parameters a Monet report takes (GetReportParameters): key, label, type (DateTime, String, Integer), whether it is required and…
monet_get_reportRun a Monet report and get its content (GetReport): general ledger, trial balance, profit and loss, VAT, customer and vendor transactions…
monet_create_customerCreate a customer (klientas) in the current company (InsertCust)
monet_update_customerChange an existing customer (klientas) in the current company (UpdateCust)
monet_create_vendorCreate a vendor (tiekėjas) in the current company (InsertVend)
monet_update_vendorChange an existing vendor (tiekėjas) in the current company (UpdateVend)
monet_delete_customerDelete a customer (DeleteCust) by short code
monet_delete_vendorDelete a vendor (DeleteVend) by short code
monet_create_itemCreate an item or service (InsertItem)
monet_update_itemChange an existing item (UpdateItem), identified by ItemId
monet_delete_itemDelete an item (DeleteItem) by item number
monet_create_dimensionAdd a dimension value (InsertDim): a department, project or product code used to split postings
monet_create_sales_invoiceEnter a sale of stocked items (PostSales): creates and, unless SkipPost, posts a sales invoice with item lines, moving stock out of the…
monet_create_sales_service_invoiceEnter a sale of services (PostSalesService): creates and, unless SkipPost, posts a sales invoice with free-text service lines; no items are…
monet_create_purchase_invoiceEnter a purchase of stocked items (PostPurch): registers a vendor invoice with item lines and receives the stock, posted unless SkipPost
monet_create_purchase_service_invoiceEnter a purchase of services (PostPurchService): registers a vendor invoice with expense lines on ledger accounts, posted unless SkipPost

Example prompts

  • "Which customers owe us money right now, and which of their invoices are already overdue?"
  • "Show me the profit and loss for September and compare it with August."
  • "List last month's purchase invoices by vendor, with net amount and VAT."
  • "How much stock of item 1001 do we have in each warehouse?"
  • "Switch to UAB Baltic Foods and give me its trial balance for the third quarter."

FAQ

Does it work with Claude Code as well as Claude Desktop? Yes, point both at https://cloud.anythingmcp.com/mcp/YOUR_SERVER_ID.

Next steps

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